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Shading mesh

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Shade Mesh

Shading net - used to cover greenhouses and open ground, in order to protect plants from the sun. The mesh material is a canvas with cells that simulates a shadow, allowing you to distribute the light evenly.

Manufacturing Technologies

In the process of manufacturing nets using a thread of synthetic origin. By interweaving threads, cells of different diameters are obtained. Through them passes the sunlight necessary for the normal growth of crops, giving a slight shadow.

The synthetic thread used in the manufacture of nets is resistant to adverse climatic conditions and ultraviolet.

Principle of Operation

The nets partially reflect the sun and ultraviolet rays , creating optimal conditions for the normal growth of crops. Thanks to the light shade, moisture from the soil evaporates slowly, which reduces the amount of watering. The grid makes it possible to achieve a uniform distribution of sunlight, allowing plants to receive the required amount of sunlight. Where a shaded mesh is used, productivity is increased up to 10%, due to improved photosynthesis in plants.

Usage

The grid is installed outside or inside the greenhouses, in open ground the canvas is pulled on special supports. Thanks to the shading material, cultivated plants are fully protected from adverse climatic conditions. It is recommended to install the grid in greenhouses of different sizes regardless of the coating: agrofibre, glass , polycarbonate and PVC film.

Types of Shading Mesh

From the diameter of the cells, the grid differs in the percentage of shading:

  • A grid that gives a shadow of 45% is well suited for melons and cucumbers.
  • 60% - nightshade crops, peppers.
  • 70% - is used to cover greenhouses outside, acting as a protection of crops from severe overheating, while letting in enough light.
  • 80% - gives a good shadow, so it is ideal for sheltering the yard, fencing and vehicles.
  • 85% - used for covering platforms, arbors.
  • 95% - used as camouflage material, installing it on the railing of a tennis court.

During the installation of the mesh, you must carefully consider its fasteners before design. Loose material can be damaged by strong winds. Grids are:

  • Red: protect plants from ultraviolet radiation.
  • Gray: contributes to frost protection.
  • Green-blue: create the optimal microclimate for crop growth.

Shadow Mesh Properties and Specifics

Due to the polymerization of the material by medium pressure, a high degree of resistance of the mesh to chemical and mechanical damage is ensured. The material does not rot and does not dry out at high temperatures and ultraviolet radiation.

The mesh uses nodular weaving in the manufacture of fiber, which provides the material with a reliable fastening of the bases, contributing to an even distribution of sunlight. In case of damage to the canvas, the deformation of its edges is minimal. The density of the material varies from 40 to 135 grams per square meter.

Classification

Depending on the light transmittance, the grid is classified:

  • From 55% to 95% is high.
  • From 35% to 55% - average.
  • From 25 to 35% is low.

Throughput depends on the cell, the larger its diameter, the better the material transmits sunlight.

Benefits

If you compare the grid with other types of agricultural products used to protect plants, then it has undeniable advantages:

  • The material does not emit toxic substances into the atmosphere, therefore it is completely safe for the environment.
  • Light weight, mesh is easy to transport and install.
  • A wide selection of canvas with different levels of shading from 25% -95%.
  • Evenly distributes the sun's rays, protecting plants from the harmful effects of adverse climatic conditions.
  • It has a high level of resistance to tearing and stretching.
  • It has a long service life.
  • No special care required.
  • Thanks to the use of special manufacturing technology, the mesh does not dissolve when damaged, so when it is cut, additional processing of the edges is not needed.

On average, the grid lasts up to five years. After use, it is carefully removed, twisted into a roll and cleaned in a dry and warm room, in which the temperature does not drop below 0 degrees. With prolonged exposure to subzero temperatures, the mesh loses its strength and elasticity, which over time leads to rapid wear of the material. With proper storage, the mesh can last up to seven years or more.

Literature

  • Ozerov B.V., Gusev V.E., Designing the production of nonwoven materials, M., 1984.

Links

  • Official site of the Research Institute of Nonwovens, Serpukhov


Source - https://ru.wikipedia.org/w/index.php?title= Shading_Grid&oldid = 100538583


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Clever Geek | 2019